Some people are just lucky enough to be born with a strong immune system and I appear to be one of them. (fingers crossed!)
Apart from the odd cold and once getting food poisoning (at the buffet in Laos airport), I've never been sick.
I even lived with a family in Germany for 5 weeks where the baby got swine flu and I didn't catch it, despite holding and kissing him every day. Other family members, however, caught the virus from him.
Go figure!
My diet is far from healthy, consisting of lots of cakes, biscuits, icecream, chocolate, chocolate icecream (!) and heaps of very spicy Asian food.
Is it in the genes, I wonder?